JPH0440879Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is for supplying reinforcing pieces for a document punch in which a reinforcing piece is pasted at the hole punching position immediately before punching a hole in a document. This relates to tape cassettes.

[Prior art] In order to reinforce the periphery of the binding hole punched in the document,
Document punches are already known in which a reinforcing piece, such as a thin piece of plastic, is applied in advance to the punching location of the document and is then used together with this reinforcing piece to punch the document.

In such a document punch, it is desirable that a tape cassette containing a reinforcing piece tape with a reinforcing piece attached thereto be detachably attached, and that the reinforcing piece is sent out from this tape cassette in conjunction with the punching operation using the handle. To do this, when the tape cassette is attached to the document punch, it is necessary to hold the small hole for feeding the tape in the reinforcing strip tape in a position that accurately matches the reinforcing strip feeding mechanism of the document punch. be.

Therefore, the present inventors provided a bullet piece that protrudes into the tape path in the beak part from which the reinforcing piece tape is drawn out,
The free end of the bullet is provided with a locking protrusion that locks into a tape feeding small hole provided in the reinforcing piece tape and comes out of the small hole by locking the small hole and the reinforcing piece sending mechanism when assembled into a document punch. A projecting tape cassette was proposed in Japanese Patent Application No. 61-273391.

When the previously proposed tape cassette is not attached to a document punch, the reinforcing piece tape maintains its relative position with the cassette by the locking protrusion that locks into the small hole, and when it is installed in the document punch, the reinforcing piece tape The locking protrusion comes out of the small hole by the feeding mechanism, and the reinforcing piece feeding mechanism locks into the small hole, so the reinforcing piece tape built into the tape cassette is moved by the rotation of the reinforcing piece feeding mechanism linked to the operation of the handle. When the cassette is attached to the document punch, the above-mentioned state in which the reinforcing strip tape is locked to the reinforcing strip delivery mechanism is maintained.

However, the tape cassette described above lacks consideration for ejecting the tape after the reinforcing piece is peeled off, and the tape is ejected in such a way that it wraps around the rotating reinforcing piece delivery mechanism (see the two points in Figure 5). (See chain line) When removing the tape cassette from the document punch, the reinforcing piece delivery mechanism may get caught in the small hole, causing the tape to be stretched and the reinforcing piece to fly out. Such protrusion of the reinforcing piece not only wastes the reinforcing piece, but also accumulates the reinforcing piece in the holed area, necessitating the effort to remove it.

Another problem is that if you forget to cut the tape ejected from the cassette when assembling the tape cassette into a document punch, the tape will become caught between the cassette and the document punch, making it impossible to eject the tape.

[Problems to be solved by the invention] The invention solves the problems of the tape cassette by discharging the tape after the reinforcing piece has been peeled off from the tape cassette containing the reinforcing piece tape to the side opposite to the beak part. The problem to be solved is to prevent troubles that occur when attaching and detaching a document to a document punch.

[Means for Solving the Problems] The present invention includes a punch mechanism that punches a hole in a document by operating a handle, and a reinforcing piece that rotates in conjunction with the operation of the handle and places a reinforcing piece at the punching position immediately before punching. A reinforcing piece sending mechanism is provided, and a tape cassette containing a reinforcing tape made by adhering reinforcing pieces to a release tape at regular intervals is removably attached to the reinforcing piece sending mechanism, and the reinforcing piece is sent out from this tape cassette. In a document punch that feeds out pieces, the tape cassette has a storage part for storing the reinforcing piece tape, a beak part for leading out the reinforcing piece tape from the storing part, and a tape from which the reinforcing piece has been peeled off at the beak part. In the beak part, the tape is guided out along the inner wall, and the tape is folded back at the tip of the inner wall to the opposite side of the inner wall. A reinforcing piece outlet is provided in the folded portion of the tape, and the guide passage is provided with a bullet projecting from the inner wall side into the guide passage. A locking protrusion is protrudingly provided at the end, which locks into a small tape feeding hole provided in the reinforcing piece tape, and comes out of the small hole by locking the small hole with the reinforcing piece sending mechanism when assembled into a document punch. The above-mentioned problem is solved by having one end of the discharge passage connected to the guide passage and the other end opening on the side opposite to the beak portion.

[Function] When the tape cassette is not attached to the document punch, the locking protrusion provided on the bullet piece protruding into the tape guide path locks into the feeding hole of the reinforcing piece tape, and the reinforcing piece tape Since the position of the feeding hole is restricted, the reinforcing piece tape and the cassette maintain a predetermined relative position.

When the tape cassette is assembled into the document punch, the locking protrusion fits into the reinforcement piece delivery mechanism of the document punch.
As the locking protrusion comes out of the small hole, the small hole is locked to the reinforcing piece delivery mechanism, so that the reinforcing piece tape built into the cassette is reliably fed out by the reinforcing piece sending mechanism that rotates in conjunction with handle operation. The tape from which the reinforcing piece has been peeled off is discharged from the opposite side of the reinforcing piece delivery mechanism through the discharge passage. When the tape cassette is attached to the document punch, the reinforcing strip tape remains locked to the reinforcing strip delivery mechanism.

When you remove the tape cassette from the document punch,
Since the locking protrusion is locked in the small hole again by the elasticity of the bullet, the relative position between the cassette and the reinforcing piece tape does not change even if the cassette is removed. In addition, since the tape is ejected from the beak side, that is, the side opposite to the reinforcing piece delivery mechanism side, the reinforcing piece delivery mechanism does not get caught in the small hole when removing the cassette.
This prevents the reinforcing piece from popping out unnecessarily.

If you forget to cut the tape that has been ejected from the cassette when reinstalling the tape cassette into the document punch, the tape will have been ejected from the opposite side of the cassette to the beak, which is the side toward which the cassette is attached, so it will be easy to insert the tape into the document punch. , the tape will not be caught between the document punch and the cassette.

[Embodiment] Figures 1 to 3 show an embodiment of the tape cassette for document punching of the present invention. The tape cassette 1, which is attached to the document punch 20 shown in FIGS. This reinforcing piece tape has reinforcing pieces B attached at regular intervals in the longitudinal direction of the release tape C, and the reinforcing piece B of the above-mentioned reinforcing piece tape has a
A small hole D for feeding the tape is provided, and a large number of cuts E, . . . are cut on both sides of the tape B in the longitudinal direction at the same intervals as the small holes D, .

The cassette 1 has a storage section 2 for storing the reinforcing strip tape, a beak section 3 for leading out the reinforcing strip tape from the storage section 2, and a discharge passage 4 for discharging the release tape C from which the reinforcing strip B has been peeled off. and the beak portion 3
An upper wall 5 extending from the surrounding wall of the housing part 2, an inner wall 7 forming a lead-out passage 6 through which the tape C led out from the housing part 2 passes between the upper wall 5 and the upper wall 5 below the upper wall 5; A lower wall 9 is provided with a guide passage 8 for the tape to pass between the inner wall 7 and the lower wall 9. This guide passage 8 is for folding the tape led out from the outlet passage 6 at the tip of the inner wall 7 and then guiding it along the opposite surface of the inner wall 7. That is, a reinforcing piece outlet 10 for sending out the reinforcing piece B is provided between the upper wall 5 and the middle wall 7.

The middle wall 7 and the lower wall 9 are, as shown in FIG.
The inner wall 7 is curved in an arc shape, and cut grooves 12, 12 are provided on both sides of the curved portion to provide a bullet piece 13 that protrudes into the guide passage 8. The free end has a locking protrusion 14 that locks into a tape feeding small hole D provided in the reinforcing piece tape.
is provided.

As shown in FIG. 2, the lower wall 9 protrudes by a small width on both the left and right sides of the beak portion 3, and the middle wall 7 also has bullet pieces 13 cut off by the cut grooves 12, 12. A projecting edge with the same width as the lower wall 9 is made downward from the part,
The lower portions of the middle wall 7 and the lower wall 9 forming the guide passage 8 are curved toward the accommodating part side, and the middle wall 7 is curved toward the partition wall 1.
5, the lower wall 9 is connected to a bottom wall 16, and the partition wall 15 and the bottom wall 16 form a discharge passage 4 for the tape C.
is formed, and the beak portion 3 in the discharge passage 4
A cutter 18 for cutting the tape C is provided above the discharge port 17, which is opened on the opposite side in the cassette removal direction.

At the tip of the beak portion 3, the upper wall 5 and the middle wall 7 protrude slightly from the lower wall 9, so that the cassette 1
When the document A is assembled into the base 21 of the punch 20 (described later), the tip of the document A is inserted into the punch 20.
This ensures that the reinforcing piece B sent out from the tip of the beak part 3 rests on the document A (see Figure 5).

As shown in FIG. 1, the reinforcing strip tape is housed in a wound state in a cassette 1, the tip of which passes through a lead-out passage 6, is bent back 180 degrees at the tip of an inner wall 7, and is placed in a guide passage 8. The locking protrusion 14 locks into the small hole D to maintain a predetermined relative position with the cassette 1, and when the release tape C being drawn out is folded back at the folding part, the reinforcing piece B is automatically removed from the tape. The tape C that is peeled off and sent out from the reinforcing piece outlet 10 onto the document A, from which the reinforcing piece B has been peeled, passes through the guide passage 8 and the discharge passage 4 to the outside from the discharge outlet 17 on the opposite side of the beak portion 3. be discharged.

Therefore, the small hole D and the cut E of the above-mentioned release tape C
The notches E are related to each other so that when the locking protrusion 14 on the bullet piece 13 is locked in the small hole D, the cut E is located at the cutter 18. The length between the locking protrusions 14 is determined by the length of the reinforcing piece B when the small hole of the tape is locked with the locking protrusion 14.
The distal end edge of the distal end is located at the distal end.

4 to 6 show a document punch that incorporates the above-mentioned cassette 1 and punches a binding hole on one side of a document A with a reinforcing piece attached. It is provided with a punching mechanism for punching a binding hole in the document A, and a reinforcing piece sending mechanism for feeding out a reinforcing piece B to the document A immediately before punching the binding hole.

The document punch 20 includes a base 21, a handle 22, and a pair of left and right support frames 23 that attach the handle 22 to the base 21, and a cassette containing a release tape C to which a reinforcing piece B is attached. 1 is formed so as to be attachable to the base 21. Base 21
As can be seen in FIG. 4 and other figures, it is made of plastic and has a rectangular planar shape, and the rear half thereof has recesses 25, 25 for incorporating the cassette 1.
It is equipped with

The metal base plate 27 stretched over the front half of the base also covers the central part, which is slightly higher than the front half, and has a vertical part 28 (see Fig. 4) formed in the stepped part to allow drilling. This defines the insertion position of document A.

The handle 22 has a support shaft 30 inserted therein.
, the vertical portions 32 of the left and right support frames 23, 23,...
Bearing 34 formed by the cut groove at the front end of...
A wire spring 3 is supported by a wire spring 3 and is wound around the support shaft 30.
5 (see FIG. 5), the free end of the handle 22 is constantly raised to a certain height. Also, handle 2
2, a pin 39 attached to a punch shaft 38 that is movable up and down the support frame 23 is inserted into a through hole 36 located slightly away from the support shaft 30 toward the handle tip side. This through hole 36 has an arc shape centered on the support shaft 30, and its length is such that a ratchet lever 40, which will be described below, rotates a ratchet wheel 44 with a pawl 42 at its tip to feed out the reinforcing piece. This is the length of the movement.

The ratchet lever 40 is rotatably attached to the handle 22.
When pressed down, the pawl 42 at the tip rotates the ratchet wheel 44 by one pawl. This ratchet wheel 44 has
A roller 46 is integrally provided with small protrusions 47 protruding at regular intervals that engage with small holes D for feeding the tape, and as the roller 46 rotates, the small protrusions 47 are attached to the release tape. Pull out a specific length of C from cassette 1. In this case, it goes without saying that the spacing between the small protrusions 47, . . . matches the spacing between the small holes D, .

Further, the reinforcing piece delivery mechanism constituted by the roller 46, ratchet wheel 44, etc. is prevented from rotating in the opposite direction by locking a leaf spring 50 to the pawl of a large ratchet wheel 48 provided integrally therewith. ing.

The recess 25 formed in the base 21 has a locking groove 52 in the bottom wall, and the cassette 1 has the tip of the lower wall 9 of the beak portion 3 abutting against the vertical portion 28 of the metal frame 27. The protrusion 19 on the bottom wall is inserted into the locking groove 52.
By locking the beak portion 3, the installation position in the base 21 is determined, and thereby the tip of the beak portion 3 protrudes from the window hole 55 onto the front half (see FIG. 6).

The roller 46 moves the tape cassette 1 to the base 2.
1, one of the small protrusions 47 abuts against and presses the locking protrusion 14 of the cassette 1, pushing it out of the small hole D against the elasticity of the bullet 13, and the small protrusion 47 presses against the locking protrusion 14 of the cassette 1, pushing it out of the small hole D against the elasticity of the elastic piece 13. D, and is installed so that the small protrusion 47 passes through the guide passage 8 as the roller 46 rotates. Therefore,
When the cassette 1 is installed in the predetermined position of the base 21,
The small protrusion 47 of the roller 46 fits into the small hole D of the tape, and the tape is set in a state where it can be fed out.

In FIGS. 5 and 6, reference numeral 24 denotes a bottom cover that is removably provided on the base 21, and reference numeral 60 denotes a bottom cover that is removably provided on the base 21, and a reference numeral 60 denotes a reinforcing piece B sent out onto the document before the punch shaft 38 punches a hole in the document. Reference numeral 90 indicates a pressing mechanism that presses the document A to firmly adhere it to the document A, and a stopper that regulates the delivery position of the reinforcing piece B.

Next, the operation of the document punch described above will be explained.

The reinforcing piece tape is housed in the tape cassette 1 with its leading end passing through the passages 6 and 8 and with the locking protrusion 14 locked in the small hole D.

When this cassette 1 is inserted into the recess 25 of the base 21 and the tip of the lower wall 9 is brought into contact with the vertical portion 28 and the protrusion 19 is locked in the locking groove 52, the small protrusion 47 of the roller 46 When one of the locking protrusions 14 hits and presses against the elasticity of the elastic piece 13, the locking protrusion 14 slips out of the small hole D and the small protrusion 47 of the roller 46 locks in the small hole D. With,
The protrusions 47 protrude into the guide passage 8. Therefore, by assembling the cassette 1 into the document punch 20, the release tape C becomes ready to be fed a predetermined length by the reinforcing piece feeding mechanism.

In this state, when the handle 22 is pushed down, the pawl 42 of the ratchet lever 40 rotates the ratchet wheel 44, so the roller 46 integrated therewith rotates by one pawl of the ratchet wheel 44 and is locked in the small hole D. A small protrusion 47 pulls out the tape by one reinforcing piece and feeds the reinforcing piece onto the document, and a punch shaft 38 that descends by operating the handle punches a hole in the reinforcing piece and the document. In this case, the roller 46 rotates by one pawl of the ratchet wheel 44 to move the next small protrusion 47.
is engaged with the locking protrusion 14 while being locked in the small hole D, in preparation for the next tape feed.

On the other hand, the tape C from which the reinforcing piece B has been peeled off is sequentially discharged to the outside from the discharge port 17 that opens on the opposite side of the beak portion 3 by operating the handle, and is cut with a cutter 18 as necessary. Discard. Therefore, when removing the cassette 1 from the base 21,
Since the small hole D of the tape is caught by the small protrusion 47 of the roller 46 and the tape is not pulled out from the cassette, it is possible to prevent the reinforcing piece B from flying out when the cassette is removed.

When the cassette 1 is removed from the base 21, the locking protrusion 14 that was pressed by the small protrusion 47 is released from the bullet piece 13.
The elasticity of the tape locks it into the small hole D of the tape, so
Even if the cassette 1 is removed from the base 21, the relative position between the reinforcing piece tape and the cassette 1 does not change.

When installing the removed cassette 1 into the document punch 20 again, the tape ejected from the side opposite to the beak portion 3 (opposite to the installation direction) may be caught between the cassette 1 and the document punch 20 during installation. Therefore, it is possible to prevent the tape from being unable to be ejected outside the punch due to forgetting to cut it.

[Effects of the invention] The tape cassette of the invention allows the release tape after the reinforcing piece has been peeled off to be discharged to the side opposite to the beak part through the discharge passage connected to the guide passage and opened on the opposite side to the beak part. This prevents the reinforcing piece delivery mechanism from wrapping around the tape and getting caught in the small hole, thereby preventing the reinforcing piece from flying out when the cassette is taken out.

Further, since the tape is not caught between the tape cassette and the document punch when it is attached to the document punch, it is possible to prevent the tape from being unable to be ejected due to the tape being caught.

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of the tape cassette of the present invention, where Figure 1 is a cross-sectional view taken along the - line in Figure 2, Figure 2 is a front view, and Figure 3 shows the state in which the tape is pulled out. 4 is a perspective view showing an example of a document punch using the tape cassette of the present invention; FIG. 5 is a side sectional view when the reinforcing piece is fed out;
FIG. 6 is a side sectional view when punching the same as above. DESCRIPTION OF SYMBOLS 1...Cassette, 2...Accommodation part, 3...Beak part, 4...Discharge passage, 6...Leading passage, 7...Inner wall, 8...Guide passage, 10...Outlet port, 13...
Bullet fragment, 14...locking protrusion, 20...document punch,
22... Handle, B... Reinforcement piece, C... Peeling tape, D... Small hole.

Claims (1)

[Scope of Claim for Utility Model Registration] A punching mechanism that punches a hole in a document by operating a handle, and a reinforcing piece delivery mechanism that rotates in conjunction with the operation of the handle and sends out a reinforcing piece to the hole punching position immediately before punching. In preparation, a tape cassette containing a reinforcing tape made by adhering reinforcing pieces to a release tape at regular intervals is detachably attached to the reinforcing piece sending mechanism, and the reinforcing pieces are sent out from this tape cassette. In the document punch, the tape cassette has a storage part that stores the reinforcing piece tape, a beak part that leads out the reinforcing piece tape from the storing part, and a discharge passage that discharges the tape from which the reinforcing piece has been peeled off at the beak part. In the beak portion, the tape is guided out along the inner wall, and the tape is folded back at the tip of the inner wall and guided along the opposite surface of the inner wall. and a reinforcing piece outlet opened at the folded part of the tape, a bullet piece protruding from the inner wall side into the guide passage is provided in the guide passage, and a reinforcing piece tape is attached to the free end of the bullet piece. A locking protrusion that locks into a small hole for feeding the tape provided in the paper punch and comes out of the small hole by locking the small hole and the reinforcing piece sending mechanism when assembled into the document punch, and the discharge passage A tape cassette for document punching, characterized in that one end is connected to the guide passage and the other end is opened on the side opposite to the beak part.